go to “System” -> “Administration” -> “Users and Groups”, unlock it for making changes. Then, select your username and click on “Manage Groups”.check out for “fuse” group, double-click it. Tick the checkbox next to your name in the new popup window. Click on OK and close all dialogs. You’re now in the “fuse” group.

Now reboot

When you are back into the session, mount the phone as:

$ ifuse /mnt/ipod/

We can also unmount using the following command

$ fusermount -u /mnt/ipod/

Let’s prepare ipod itunes directory:

$ mkdir /mnt/ipod/iTunes_Control/Device/

Fetch your UUID (The first number, 40 characters long)

$ lsusb -v | grep -i iSerial

Then, run:

$ ipod-read-sysinfo-extended

[mountpoint here is /mnt/ipod/]

This should generate a file named iTunes_Control/Device/SysInfoExtended.

Make sure it’s not empty and should be a big plist (XML file) with a lot of information.

$ fusermount -u /mnt/ipod/

Reboot again.

Step 7. Plug the iPod/iPhone, you should see it appear on the desktop and it should now be

Mounted as-is in Rhythmbox and you can add music files. (it can be slow)

Tuesday, December 27, 2011

Solution: Many of the ipod users cannot mount their device in ubuntu 11.10. it usually throws an error ubuntu 10.10 unhandled lockdown error -4, to fix this, execute the following line one by one in a terminal windowsudo apt-get install ifuse libimobiledevice-utilsCode:
idevicepair unpair && idevicepair pair

Solution: Make sure the additional drivers for your graphics card are installed (if not install them through More Apps => Customization => Additional Drivers) then run in the terminal:
Code:
gedit /home/[Your Home Directory]/.config/compiz-1/compizconfig/config
And replace its content with:
Code:
[general_ubuntu]
profile =
integration = true

Solution: You can change the default application in one command. in the terminal change the default application for every extension the current app is default for. First create a backup for the file we are going to change :
Code:
sudo cp /etc/gnome/defaults.list /etc/gnome/defaults.list0

Sunday, December 25, 2011

Solution: This solution sounds to work for many people.. Give a try.. Open the terminal and run:
sudo gedit /etc/modprobe.d/iwlagn.conf
And change:
options iwlagn 11n_disable=1 11n_disable50=1
to:
options iwlagn 11n_disable=1
And then reboot.. If the above file does not exists just create one and enter the line above, and then reboot..
Many people got this problem fixed after upgrading the ubuntu 11.10

Cause of problem: Activating some plugins in Compiz could automatically disable essential plugins that unity uses, leading to disabling it.. Resetting Unity's settiings should solve this problem.
Solution: once log out (using CTRL+ALT+DEL) and try to log in again with Unity 2D or as a guest. Get access to the terminal.. In the terminal window run:

gconftool-2 --recursive-unset /apps/compiz-1

and then re-enable the Unity plug-in in CCSM. Or run the following code in the terminal:

unity --reset

and log out and in again (using Unity). Unity should start normally now. If it still doesn't start, go through the same steps and run this command in the terminal instead:

New versions of ubuntu comes with a USB creator program which can creat bootable usbs from a downloaded ISO image.

The recommended way to install Ubuntu from a USB flash drive is to use the usb-creator program, point it at a ISO image of a Ubuntu installation CD that you have downloaded, and let it create a bootable USB that you can use instead of the CD.

Booting from a USB flash drive will behave just as if you had booted from the install CD. It will show the language selection and then the install menu, from which you can install Ubuntu onto the computer's hard drive or launch the Live environment.

It is adviced to have wired internet access while booting from USB, as it is not certain that Ubuntu can recognise a WiFi-wireless card on the first attempt.

Friday, December 23, 2011

Canonical offers ubuntu enterprise as flexible as it is highly configurable and customizable to a variety of environments.

Now, Starting with 11.10 (oneiric), Ubuntu Enterprise Cloud is replaced by Ubuntu Cloud Infrastructure, which is based on OpenStack.

If you want to experience ubuntu entyerprise cloud,You may use the following installation tutorials:

You may use the following installation tutorials:

Installation from the Installer CD

This tutorial covers UEC installation from the Ubuntu 10.04 Server Edition CD, and assumes a basic network topology, with a single system serving as the "all-in-one controller", and one or more nodes attached. This is the recommended tutorial if you want to familiarize yourself with UEC with a (relatively) simple installation.

Normal installation using the packages

This tutorial describes how to deploy UEC on already-installed Ubuntu servers in a setup similar to the default install.

Advanced installation using the packages on separate servers

Use this tutorial if you want to deploy a more complex network topology (e.g., multiple clusters, or running the required cloud services from separate physical machines).
More details

Thursday, December 22, 2011

Hi all! Here is some useful ubuntu commands which are most commonly used among ubuntu users. Along with some commonly found issues [SOLVED]
To check Installed Ubuntu version
$ lsb_release -a
To check Disk Space:
$ df -Th
To manually Upgrade Ubuntu Version Online:
Press ALT+F2 , type "update-manager -d" without quotes and hit Enter(return) key.
To mount an ISO image as a drive on Ubuntu:
$ sudo mount -o loop ~/Desktop/filename.iso /media/cdrom0
To move the Minimize/Maximize/Close Buttons back the upper right corner of the window.
Hit ALT - F2
Type gconf-editor
Go to the following:
apps --> metacity --> general
Find the button_layout parameter, right click, and select Edit Key
Set the value to the following:
menu:minimize,maximize,close
Do not forget to put the colon . "menu" is not necessary.
To change screen resolution right from Command prompt:
$ xrandr -s 1024*76
To change MAC address of NIC card in Ubuntu:
Type following command either in /etc/rc.local file or at command prompt:
ifconfig eth0 down
ifconfig eth0 hw ether NEW_MAC_ADDR
ifconfig eth0 up
To view or cancel print Job on Unix Printer
1. Login as a user or super-user to unix computer.
2. Use "lpq -Pprinter" command to view printer queue.
$ lpq -Ppsc011
3. Use "lprm -Pprinter [user_id] to cancel your job
$ lprm -Ppsc011 g0xyzqwe
[ Important ] Public key error while trying to run update command
$ sudo apt-get update
gives following error :
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D2B5F4E7C3BB95BB
Solution: Take last 8 characters in the key and run following command
$ gpg --keyserver keyserver.ubuntu.com --recv-keys C3BB95BB
$ gpg --export -armor C3BB95BB | sudo apt-key add -
To download the key on another computer and then to run on your computer :
$ gpg --keyserver keyserver.ubuntu.com --recv-keys C3BB95BB
$ gpg --export -armor C3BB95BB > key.asc
Now Copy key.asc file on your computer and run following command:
$ cat key.asc | sudo apt-key add -
To reflect the changes done in ~/.bashrc file without restarting your Terminal window:
$ source ~/.bashrc
To get Ubuntu Command prompt:
press : Ctrl + Alt + F2 or
Ctrl + Alt + F5
and to get back GUI screen (Xserver):
press: Ctrl + Alt + F7
What to do if ubuntu hangs? Or how to restart Xserver:
press : Ctrl + Alt + Backspace
or press: Alt + Backspace
This usually restarts xserver. You need to login again to the system.
Using Bash History Effectively:
Type the following command to get a list of all related commands with their history numbers:
$ history | grep -i "search string"
Once you've found the command you want, you can execute it specifically by its number
$ !
How to prevent Auto Locking the computer Screen:
1. Open file "/etc/default/acpi-support" and comment following line:
# Comment this out to disable screen locking on resume
LOCK_SCREEN=true
2. Open "System > Preferences > Screen Saver" and uncheck following option:
Lock screen when screensaver is active
How to Merge Multiple PDF files into single PDF file:
Steps:
1. Install two pacakeges GhostScript and PDFtk tools.
$ sudo apt-get install gs pdftk
2. Use following command to combine multiple files into single PDF file. The output file name is "singleCombinedPdfFile.pdf". The input file names are all files in the current directory, bcoz we used "*.pdf".
$ gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=singleCombinedPdfFile.pdf -dBATCH *.pdf
If you want to join PDF files in specific order then you can also use file names.
$ gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=singleCombinedPdfFile.pdf -dBATCH 1.pdf 2.pdf 3.pdf
Wireless Networks: "Wireless is disabled"
$ rfkill list all
You should see both the soft blocked and hard blocked as no. If either of them is yes then the connection would not be enabled. To enable type the following:
$ rfkill unblock wifi
Hard blocked: yes
This suggests that the wireless button is not switched on.

Tuesday, December 6, 2011

Problem: I have downloaded firefox from mozilla but the file downloaded was of type firefox.tar.bz2 . the eaziest way to run firefox is given below.

Solution: This solution is for absolute beginners, all you have to to is

1. right click on the .tar.bz2 file and choose extract here, this will create a folder named "firefox".
2. Now open Terminal
3.cd to the extracted folder
-by default the folder will be in the downloads Directory

type cd /home/<username>/Downloads/firefox/ and press enter(Return). give your username in the place of <username>.

4. type ./firefox and press enter thats all.

Now, If you want to creat a shortcut of the new firefox on top pannel,

1. Right click on the pannel, choose Add to pannel.
2. Choose Custom application launcher from the menu.
3.fill the details As shown in the image.